高速铁路光回路异物侵限监测系统方案研究

为了解决高速铁路异物侵限双电网监测系统存在的抗干扰能力差,双电网需连续稳定供电、工程投资大等问题,运用光纤通信、计算机网络和自动控制等技术,提出光回路异物侵限监测系统的方案,论述系统构成方案,检知网的设计方案,传感光纤的选型、敷设方式和接续方案,光信号衰耗指标的计算以及监控单元、铁路局中心系统设置方案等内容,有效解决双电网监测系统存在的问题,对保障高速铁路运输安全具有一定价值。

Research on Monitoring System on Foreign Matter Intrusion into High-Speed Railway Optical Loop

In order to solve the problem of applying double power network in the high-speed railway foreign objects intrusion monitoring system,which results in weak anti-turbulence capability and the need of continuous steady power supply and relative large investment,optical fiber communication,computer network and automatic control technology are employed and a new method of optical loop scheme is proposed,including the elaboration on composition,design scheme of detecting network,selection of sensor optical fiber,laying measures as well as fiber splicing. The calculation of optic attenuation and the setting of monitor units together with the center composition inside the railway administration are also illustrated. The problems existing in double power network monitoring system can thus be solved effectively,which is practical to guarantee the safety of high-speed railway transportation.